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If m and n are positive integers, then t...

If `m and n` are positive integers, then the digit in the units place of `5^n+6^m` is always (a) 1 (b) 5 (c) 6 (d) `n+m`

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RS AGGARWAL-NUMBER SYSTEM-All Questions
  1. The digit in the units place of the product (2464)^(1793)xx\ (615)^(31...

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  2. If x is an even number, then x^(4n), where n is a positive integer, wi...

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  3. If m and n are positive integers, then the digit in the units place of...

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  4. The number formed from the last two digits (ones and tens) of the e...

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  5. The last digit in the decimal representation of (1/5)^(2000) is (a) 2...

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  6. Let x be the product of two numbers 3, 659, 893, 456, 789, 325, 678...

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  7. Let a number of three digits have for its middle digit the sum of t...

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  8. What least value must be given to n so that the number 6135n2 becom...

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  9. Find the multiple of 11 in the following numbers. 112144    (b) ...

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  10. 111, 111, 111, 111 is divisible by (a) 3 and 37 only   (b) 3,11 and 3...

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  11. Which of the following numbers in not divisible by 18? 34056       ...

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  12. The number 89715938* is divisible by 4. The unknown non-zero digit ...

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  13. Which one of the following numbers is divisible by 3? (a) 4006020  ...

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  14. A number is divisible by 11 if the difference between the sums of t...

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  15. Which one of the following numbers is divisible by 11? 4823718     ...

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  16. Which one of the following numbers is divisible by 15? 17325     ...

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  17. 7386038 is divisible by 3     (b) 4     (c) 9      (d) 11

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  18. Consider the following statements: The numbers 24984, 26784 and 285...

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  19. Which of the following numbers is a multiple of 8? 923872    (b)...

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  20. If 78*3945\ is divisible by 11, where * is a digit, then * is equa...

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